Make a statement with this multi-dimensional work of art! The unique design of this ring gives the illusion of stacked grooved gears rotating in opposite directions. Designed in 7mm brushed black ceramic, this band will make a striking addition to any jewelry collection. Durable enough for everyday wear, ceramic rings are hypoallergenic, heat- and scratch-resistant, and affordable. Due to the nature of ceramic, we cannot offer any resizing on this ring.